docs: def parse_column_names(text):
      """
      Extracts column names from a string containing quoted and comma separated
      column names.
  
      :param text: Line extracted from `COPY` statement containing quoted and
                   comma separated column names.
      :type text: str
  
      :return: Tuple containing just the column names.
      :rtype: tuple[str]
      """
      return tuple(
          re.sub(r"^\"(.*)\"$", r"\1", column_name.strip())
          for column_name in text.split(",")
      )